He's happy all the time because no matter what happens, he knows he's gonna stay happy.
Let yourself be the guy that nothing knocks the wind out of your sails. Realize that you don't need anything in order to be happy other than making the decision to be happy.
Start being happy because you're a human being and not a tree. You have the ability to walk around and see the world again today. Fucking smile because some unlucky fuck just flashed their last one.
Happiness is a choice. Not something you buy from the store or read in a book.
This. To simplify ask yourselves these 2 questions for the next 30 days ( a 30 day "challenge" if you will)
1. Out of 10 , how much fun am i having ( if not a 10 , you know you need to step up )
2. How happy am i out of 10 ( if not a 10 , step up )
Soon you will realise happiness is a literal choice. As for me i'm not mr. fun guy 24/7 , more in focused hustle mode for my work. But if i'm out and about , i always try to really let go and make it a blast. But i'm happier and more fun than the people around me so that's cool.
No surprise though , people will want to associate with the happy fun guy.